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Finding the Fourth Proportional to 238,372.46, 328,859.94 and 153,538.76

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Solution

The fourth proportional to 238,372.46, 328,859.94 and 153,538.76 is: 211,822.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,372.46 : 328,859.94 = 153,538.76 : x
  2. Step 2: Convert to fraction form
    238,372.46/328,859.94 = 153,538.76/x
  3. Step 3: Cross multiply
    238,372.46x = 328,859.94 × 153,538.76
  4. Step 4: Simplify right side
    238,372.46x = 50,492,747,401.27
  5. Step 5: Solve for x
    x = 50,492,747,401.27/238,372.46
  6. Step 6: Final answer
    x = 211,822.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.